Heating-oven.



J. H. MAURER.

HEATING OVEN.

APPLICATION FILED MAY 14, 1914.

1, 1 1 1,9 1 3. Patented p 29, 1914.

2 SHEETSSHEET 1.

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THE NORRIS PETERS CO" PHOTD-LITHO WASHINGION. U, C.

J. H. MAURER. HEATING OVEN.

APPLICATION FILED MAY 14, 1914.

1, 1 1 1 ,91 3. Pa ented Sept. 29, 1914.

2 SHEBTSSHEET 2.

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q/vitneoom THE NORRIS EETERS C0.. PHOm-LITHQ, WASHINGTUN, D) C.

UNITED STATES PATENT onmon.

JOHN H. MAURER, OF BALTIMORE, MARYLAND, ASSIGNOR 0F ONE-HALF T0 CHARLESWINTERNITZ, 0F BALTIMORE, MARYLAND.

" HEATING-OVEN.

Specification of Iietters Patent.

Patented Sept. 29, 1914.

Application filed May 14, 1914. Serial No. 838,549.

T 0 all whom it may concern:

Be it known that 1, JOHN H. MAURER, a citizen of the United States,residing at Baltimore, Maryland, have invented certain new and usefulImprovements in Heating-Ovens, of which the following is a speci-' videa device in which the joints are formed in such a way as to eliminatethe use of S01". der or any similar material. v

With these and other objects in View, the invention consists in thenovel combination and arrangement of parts which will be fully set forthin the following specification and accompanying drawings, in which,-

Figure l is a front view in elevation of a heating oven constructed inaccordance with this invention, Fig. 2 is a top plan viewof Fig. 1, Fig.3 is a longitudinal sectional view taken on line 3-3 of Fig. 2, Fig. 4is a transverse sectional view .taken on line 44 of Fig. 3, Fig. 5 is anenlarged detail sectional view showing the method of sup-' porting thegrid, and Fig. 6 is an enlarged detail sectional view of the endconstruction. Referring now to the drawings, by characters of reference,the numeral 1 designates the main body portion of the device, which isconstructed of a single sheet of metal and is bent to form a rectangularcasing. A suitable slit 2 is cut in the froiit wall of the cas ing andcommunicates at its terminals with the slits 3 as illustratedijl inFig. 1. The metal between the slits 2and 3 is bent inwardly as at 4: toform the shelf 5, which is supported by means of the angle brackets 6which are riveted or otherwise secured to the front wall and to theshelf. An enlarged aperture 7 is formed in the back wall of the casingand is arranged to be closed by a suitable cover plate which will bemore fully hereinafter described. Formed centrally of the top of therectangular casing is the aperture 8 in which the grid designatedgenerally by the numeral 9, rests. This grid 9 preferably comprises thering 10, having thereto.

formed integral therewith a plurality of arms 11, the outer ends ofwhich are bent beyond the outer periphery of the ring as at 12 toformsupports for the grid when the device is in use.

Secured to the backwa-ll of the casing 1 are the guide plates 13, havingthe bentback portion 14: which terminates at its free end in the portion15, which is ar ranged to form a guide for the cover plate 16,hereinbefore mentioned. plate 16 is provided at its upper edge with theextension 17 which is arranged to form a handle by means of which theplate may be removed when so desired. A pair of end members 18 havingthe angular extensions 19 at their free edges are provided, and each ofthe extensions is bent back upon itself as at 20 to form the slots 21,in which the edges of the rectangular casing 1,isheld. A suitable rivetor other securing means 22, is extended through the angular extensionand bent-back portion, and is arranged to rigidly hold the end member 18in place. Extending longitudinally through the box thus formed is therod 23 having at each end the threaded portion 241, with which the nuts25 are arranged to cooperate. This rod'23 is arranged to form alongitudinal reinforcement for the box and also to form a support forthe tools when the same are resting on the shelf 5 hereinbeforedescribed.

Secured centrally of the lateral extremities and extendinglongitudinally through the box is a suitable supply pipe 26 having atone end the stop cock 27, by means of which the flow of gas into thepipe is controlled. Se-

cured centrally ofthe pipe 26 is. the T-connection 28 having the pipe 29connected This pipe 29 carries at its free terminal the gas burner 30 inwhich the ordinary tip 31 is held. Thus it will be seen that when thestop cook 27 is opened the gas will flow into the pipe 26 and throughthe tip 31 where it is ignited and the flame will come centrally of thegrid 9 hereinbefore described.

A suitable liquid container 32 is provided and has communicatingtherewith at spaced intervals the burners 33 in which the wicks 34 areheld. These wicks 34 extend into the chamber as clearly shown at Fig. 4,and are arranged to absorb the liquid contained therein.

It will be evident from the foregoing that in use, the glue pot is stoodupon the grid 9, and the gas burner ignited thus causing the glue Withinthe glue pot to become heated. When it is desired to heat any tools orsimilar devices, the Wicks 34 are ignited after the chamber 82 is filledWith alcoholor similar liquid, so that the tools may be laid 7 upon theshelfand will be further supported by the rod 23 directly over thealcohol flame. Since this flame creates a white light, it Will beapparent that the "tools thus heated Will not become smoked and may beused Without ina'ny way injuring the article.

With the use of this inventionit will become apparent that it is notnecessary to have a separate heating device for "thetools andfor theglue pot and also that the heat --generated from the tool heatingburnerwill materially assist in the heating of the glue pot andconsequently considerable saving of fuel will be efiected.

l/Vhile in the foregoing there has been shown and described'thepreferred embodiment of this invention, it is to be understood that suchchanges may be made in the combinationand arrangement of parts as willfall Within the spirit and scope of the invention as defined'in theappended claim.

to end, said bar-cooperating withthe shelf in holding tools which'are'to be heated, a gas burnercentrally of'the casing and extending intocl'ose proximi'tywith the grid, 'and a pair'of spaced alcohollilllIPSWlllhlll the casing to form tool heaters, whereby when tools arelaid on the shelf and the supporting bar they will be in directalinement with the flame from thealcohol lamps and become heated.

"In testimony whereof I aflix my signature in presence of two witnesses.

JOHN H. MAURER.

"Witnesses WILLIAM J. MCCRAOKAN,

JAMES L. MUSE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, 'D; C.

